"In Dan Zettwoch's Science Comics: Cars, you'll learn where cars came from and how they work. When you pop the hood, what are you looking at? How does gasoline - or electric batteries, or even steam - make a car move? Rev up your motor and take look at the combustible history of the automobile and its explosive effects on our modern lives."--Provided by publisher.

In a world populated with monsters, ghouls, witches, magical chickens, ghosts, and regular folks, a wannabe racer and a ghost team up to win the local Grand Prix, with a blossoming romance along the way.--Publisher.

"Has Nancy Drew solved the world's energy crisis? On a mission, sponsored by young, rich, and handsome Ralph Credo, Nancy teams up with eccentric scientist Roy Hinkley, to find an amazing high efficiency engine able to operate at an unbelievable 200 miles per gallon! The prototype engine, mounted on a tank, was part of an experiment during the final days of World War II. There's just one problem, the engine and the tank are haunted."--